FLLXT971A Intel, FLLXT971A Datasheet - Page 67
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FLLXT971A
Manufacturer Part Number
FLLXT971A
Description
3.3V Dual Speed Fast Ethernet PHY Transceicer
Manufacturer
Intel
Datasheet
1.FLLXT971A.pdf
(90 pages)
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Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
Figure 34. 10BASE-T Jabber and Unjabber Timing
Table 35. 10BASE-T Jabber and Unjabber Timing Parameters
Figure 35. 10BASE-T SQE (Heartbeat) Timing
Table 36. 10BASE-T SQE Timing Parameters
Maximum transmit time
Unjab time
COL (SQE) Delay after TX_EN off
COL (SQE) Pulse duration
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
1. Typical values are at 25 °C and are for design aid only; not guaranteed and not subject to production
TX_EN
testing.
testing.
COL
TXD
TX_CLK
TX_EN
Parameter
COL
Parameter
Symbol
t1
t2
Symbol
t
1
t1
t2
LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
Min
250
20
0.65
Min
0.5
Typ
t
1
Typ
–
–
–
–
1
1
Max
Max
1.6
150
750
1.5
t
2
Units
us
us
Units
ms
ms
t
2
Test Conditions
Test Conditions
–
–
–
–
67